18514868828 has 12 divisors (see below), whose sum is σ = 32403782712. Its totient is φ = 9256645200.

The previous prime is 18514868821. The next prime is 18514868851. The reversal of 18514868828 is 82886841581.

It is a super-3 number, since 3×18514868828³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18514868821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142850 + ... + 239657.

It is an arithmetic number, because the mean of its divisors is an integer number (2700315226).

Almost surely, 2^18514868828 is an apocalyptic number.

It is an amenable number.

18514868828 is a deficient number, since it is larger than the sum of its proper divisors (13888913884).

18514868828 is a wasteful number, since it uses less digits than its factorization.

18514868828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394612 (or 394610 counting only the distinct ones).

The product of its digits is 7864320, while the sum is 59.

The spelling of 18514868828 in words is "eighteen billion, five hundred fourteen million, eight hundred sixty-eight thousand, eight hundred twenty-eight".